CN106252828A - Near-field communication aerial and there is near field communication means and the mobile system of this antenna - Google Patents
Near-field communication aerial and there is near field communication means and the mobile system of this antenna Download PDFInfo
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- CN106252828A CN106252828A CN201610402922.4A CN201610402922A CN106252828A CN 106252828 A CN106252828 A CN 106252828A CN 201610402922 A CN201610402922 A CN 201610402922A CN 106252828 A CN106252828 A CN 106252828A
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
- H01Q1/2208—Supports; Mounting means by structural association with other equipment or articles associated with components used in interrogation type services, i.e. in systems for information exchange between an interrogator/reader and a tag/transponder, e.g. in Radio Frequency Identification [RFID] systems
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q7/00—Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
- H01Q1/2283—Supports; Mounting means by structural association with other equipment or articles mounted in or on the surface of a semiconductor substrate as a chip-type antenna or integrated with other components into an IC package
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
- H01Q1/38—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q23/00—Antennas with active circuits or circuit elements integrated within them or attached to them
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
- H04B5/20—Near-field transmission systems, e.g. inductive or capacitive transmission systems characterised by the transmission technique; characterised by the transmission medium
- H04B5/24—Inductive coupling
- H04B5/26—Inductive coupling using coils
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Near-Field Transmission Systems (AREA)
- Details Of Aerials (AREA)
Abstract
Providing a kind of near-field communication (NFC) antenna and have near field communication means and the mobile system of this antenna, described NFC antenna includes first antenna electrode and the second antenna electrode and circuit coil.First antenna electrode and the second antenna electrode are formed on the first surface of substrate.Circuit coil is formed on the first surface of substrate, is directly incorporated between first antenna electrode and the second antenna electrode, and includes the first multiturn.The inside of every circle that first antenna electrode is positioned in the multiturn of circuit coil, the outside of every circle that the second antenna electrode is positioned in the multiturn of circuit coil.Be parallel in the edge of substrate one of imaginary line through first antenna electrode and the second antenna electrode.Every circle in first multiturn of circuit coil is not stacked.
Description
This application claims on June 12nd, 2015 submit in Korean Intellectual Property Office (KIPO)
The priority of 10-2015-0083130 korean patent application, the content of this korean patent application is by quoting
All it is incorporated herein.
Technical field
The method and apparatus consistent with exemplary embodiment relates to a kind of wireless communication technology, more specifically,
Relate to a kind of antenna for near-field communication (NFC), include the NFC device of this antenna and include this
The mobile system of NFC device.
Background technology
Near-field communication (NFC) technology is short-range wireless communication technologies.Because having been developed for NFC technique,
So NFC device is the most more generally useful applied in the mobile device.
Mobile NFC device uses NFC easily to communicate with one another.It addition, NFC device may be used for moving
Dynamic payment.
Generally, NFC device includes the NFC antenna for launching electromagnetic wave.Being manufactured into of NFC device
This and performance can depend on the design of NFC antenna.
Therefore, if the manufacturing cost of NFC antenna improves, then include the NFC device of NFC antenna
Also can improve with the manufacturing cost of mobile device.
Summary of the invention
Exemplary embodiment relates to a kind of leading to near field in holding high performance reduction simultaneously manufacturing cost
The antenna of letter (NFC).
One or more exemplary embodiment relates to providing a kind of NFC device including described antenna.
One or more exemplary embodiment relates to providing a kind of mobile system including this NFC device.
One side according to exemplary embodiment, it is provided that a kind of near-field communication (NFC) antenna, described
Near-field communication aerial includes first antenna electrode and the second antenna electrode being formed on the first surface of substrate
And the circuit coil being formed on the first surface of substrate, circuit coil is directly incorporated in first antenna electricity
Between pole and the second antenna electrode and include the first multiturn, wherein, first antenna electrode is positioned at return line
The inside of the every circle in the first multiturn of circle, the second antenna electrode is positioned in the first multiturn of circuit coil
The outside of every circle.
The multiturn of circuit coil can be between first antenna electrode and the second antenna electrode.
The multiturn of circuit coil can not be stacked.
Every circle in the multiturn of circuit coil can have rectangular shape.
Every circle in the multiturn of circuit coil can have round-shaped.
Substrate can include flexible printed circuit board (FPCB).
Substrate may be constructed such that on the battery being arranged on mobile device.
Substrate may be constructed such that on the dorsal part lid being arranged on mobile device.
NFC antenna may also include the resonance coil on the first surface being formed at substrate, and resonance coil is permissible
It is physically separated with circuit coil, first antenna electrode and the second antenna electrode and can include more than second
Circle.
Resonance coil may be located at the inside of the interior circle in the first multiturn of circuit coil.
Between interior circle in first multiturn of circuit coil and the outermost turn in the second multiturn of resonance coil
Distance can be less than 2mm.
The self-resonant frequency of resonance coil can correspond to 13.56MHz.
Every circle in second multiturn of resonance coil can have rectangular shape.
Every circle in second multiturn of resonance coil can have round-shaped.
NFC antenna can also include: resonance coil, is formed on the first surface of substrate, resonance coil
It is physically separated with circuit coil, first antenna electrode and the second antenna electrode, and includes a circle；With
And resonant capacitor, it is combined between the two ends of resonance coil.
Resonance coil and resonant capacitor may be located at the interior of the interior circle in the first multiturn of circuit coil
Portion.
The distance between interior circle and resonance coil in first multiturn of circuit coil can be less than 2mm.
The resonant frequency formed by resonance coil and resonant capacitor can correspond to 13.56MHz.
One side according to another exemplary embodiment, it is provided that a kind of near-field communication (NFC) device,
Described NFC device includes: NFC chip, including the first sender electrode and the second sender electrode, and quilt
It is configured to produce and sends signal and send signal by the first sender electrode and the output of the second sender electrode；
NFC antenna, is formed on the first surface of substrate, NFC antenna include first antenna electrode, second day
Line electrode and be directly incorporated in the circuit coil between first antenna electrode and the second antenna electrode, and
It is configured to based on sending signal transmitting electromagnetic wave；And match circuit, be attached to the first sender electrode,
Second sender electrode, first antenna electrode and the second antenna electrode, and be configured to NFC chip with
Performing impedance matching between NFC antenna, wherein, circuit coil includes that multiturn, first antenna electrode are positioned at
The inside of the every circle in the multiturn of circuit coil, it is every that the second antenna electrode is positioned in the multiturn of circuit coil
The outside of circle.
One side according to another exemplary embodiment, it is provided that a kind of mobile system, described mobile system
System includes: near-field communication (NFC) device, is configured to be communicated with external device (ED) by NFC；
Storage arrangement, is configured to storage output data；And application processor, it is configured to control NFC
Device and the operation of storage arrangement, wherein, NFC device includes: NFC chip, including the first transmission
Electrode and the second sender electrode, and be configured to produce the transmission signal corresponding with output data and pass through
First sender electrode and the output of the second sender electrode send signal；NFC antenna, is formed at the first of substrate
On surface, NFC antenna includes first antenna electrode, the second antenna electrode and is directly incorporated in first day
Circuit coil between line electrode and the second antenna electrode, and be configured to based on sending signal transmitting electricity
Magnetic wave；And match circuit, it is attached to the first sender electrode, the second sender electrode, first antenna electrode
With the second antenna electrode, and be configured between NFC chip and NFC antenna perform impedance matching,
Wherein, circuit coil includes every circle that multiturn, first antenna electrode be positioned in the multiturn of circuit coil
Portion, the outside of every circle that the second antenna electrode is positioned in the multiturn of circuit coil.
Accompanying drawing explanation
By detailed description below in conjunction with the accompanying drawings, will be apparent from geographical solution illustrative, nonrestrictive
Exemplary embodiment.
Fig. 1 is the figure illustrating the mobile device according to one or more exemplary embodiment.
Fig. 2 is the frame illustrating near-field communication (NFC) device according to one or more exemplary embodiment
Figure.
Fig. 3 and Fig. 4 is to illustrate according in the NFC device of Fig. 2 of one or more exemplary embodiment
Including the figure of example of NFC antenna.
Fig. 5 be illustrate according to one or more exemplary embodiment its on be formed with the substrate of antenna
Figure.
Fig. 6 is the block diagram of the example of the NFC device illustrating Fig. 2.
Fig. 7 is the block diagram of the example of the transtation mission circuit illustrating that the NFC device of Fig. 6 includes.
Fig. 8 is the block diagram of the example of the NFC device illustrating Fig. 2.
Fig. 9 is the block diagram of the example of the NFC device illustrating Fig. 2.
Figure 10 is the figure of the example of the NFC antenna illustrating that the NFC device of Fig. 2 includes.
Figure 11 is the block diagram of the example of the NFC device illustrating Fig. 2.
Figure 12 is the figure of the example of the NFC antenna illustrating that the NFC device of Fig. 2 includes.
Figure 13 is the block diagram of the example of the NFC device illustrating Fig. 2.
Figure 14 and Figure 15 is to illustrate the peace in the mobile device according to one or more exemplary embodiment
The figure of the example of the NFC device of dress Fig. 2.
Figure 16 is the block diagram illustrating the mobile system according to exemplary embodiment.
Detailed description of the invention
It is more fully described various exemplary embodiment with reference to the accompanying drawings, one or more shown in the drawings
Multiple exemplary embodiments.But, present inventive concept can realize in many different forms, and
Should not be construed as limited to exemplary embodiments set forth herein.On the contrary, it is provided that these exemplary realities
Executing example makes the disclosure to be complete and thoroughly, and will pass on fully to those skilled in the art
The scope of present inventive concept.Run through this description, the element that same reference instruction is same.
Although it will be appreciated that and term first, second etc. here can being used to describe various element, but
It is that these elements should not be limited by these terms.These terms are used for an element and another element
Make a distinction.Such as, in the case of without departing from the scope of present inventive concept, the first element can be ordered
Entitled second element, similar, the second element can be named as the first element.As used herein,
Term "and/or" includes any and all combination of one or more relevant Listed Items.
It will be appreciated that when element be referred to as " connection " or " in conjunction with " to another element time, this element
Can be directly connected to or be bonded directly to another element described, or intermediary element can be there is.On the contrary,
When element be referred to as " being directly connected to " or " directly in conjunction with " to another element time, there is not intermediary element.
Should explain in a similar fashion other word for describing the relation between element (such as, " ... it
Between " with " directly ... between ", " adjacent " and " direct neighbor " etc.).
Term used herein is the purpose in order to describe specific exemplary embodiment, and is not intended to this
Inventive concept limits.As used herein, unless the context clearly indicates otherwise, otherwise odd number
" one (kind, the person) " of form and " described (being somebody's turn to do) " are also intended to include plural form.It will also be appreciated that
, when be used herein term " comprise ", " including " and/or during its modification, illustrate to there is described spy
Levy, entirety, step, operation, element and/or assembly, but do not preclude the presence or addition of one or more its
Its feature, entirety, step, operation, element, assembly and/or their group.
Unless otherwise defined, all terms the most used herein (including technical term and scientific terminology)
There is the meaning equivalent in meaning being generally understood that with this inventive concept those of ordinary skill in the field.
It will be further understood that unless the most so definition here, otherwise term is (such as, in general dictionary
The term of definition) meaning consistent with their meaning in the environment of association area should be interpreted as having,
And will not explain with preferable or the most formal implication.
Fig. 1 is the figure illustrating the mobile device according to one or more exemplary embodiment.
With reference to Fig. 1, mobile device 10 includes near-field communication (NFC) device 20.In mobile device 10
Including NFC device 20 by NFC and outside NFC device 30 (such as, NFC reader or
Nfc card) communication.
Such as, NFC device 20 can alternately perform detect nfc card the most attached in NFC device 20
The whether operation near NFC device 20 of near operation and detection NFC reader.
When NFC device 20 detects that NFC reader is near NFC device 20, NFC device
20 can operate under mode card, and wherein NFC device 20 is used as card.Under mode card, NFC device
20 can carry out data communication based on the electromagnetic wave EMW launched from NFC reader with NFC reader.
When NFC device 20 detects that nfc card is near NFC device 20, NFC device 20 can
To operate under card reader pattern, wherein NFC device 20 is used as card reader.Under card reader pattern,
NFC device 20 can launch electromagnetic wave EMW to carry out data communication with nfc card.
In one or more exemplary embodiment, mobile device 10 can be such as cell phone, intelligence
Can phone, tablet PC, laptop computer, personal digital assistant (PDA), portable multimedia
Player (PMP), digital camera, music player, portable game console, navigation system etc.
Mobile device.In other exemplary embodiments of the invention, mobile device 10 can be such as intelligent watch, wrist strap
The wearable electronics of type electronic installation, neckstrap type electronic installation, glasses type electronic installation etc..
Fig. 2 is the frame illustrating near-field communication (NFC) device according to one or more exemplary embodiment
Figure.
The NFC device 20 that the mobile device 10 of Fig. 1 includes can be implemented as the NFC device of Fig. 2
20。
With reference to Fig. 2, NFC device 20 can include NFC antenna 100, match circuit 200 and NFC
Chip 300.
NFC antenna 100 can include first antenna electrode A ED1 and the second antenna electrode AED2.NFC
Antenna 100 can be attached to coupling electricity by first antenna electrode A ED1 and the second antenna electrode AED2
Road 200.NFC antenna 100 can also include being combined in first antenna electrode A ED1 and second day
Circuit coil between line electrode AED2, circuit coil includes multiturn.
Generally, substrate can be formed at according to the NFC antenna of one or more exemplary embodiment
On one surface.That is, NFC antenna 100 includes first antenna electrode A ED1, the second antenna electric
Pole AED2 and circuit coil can be entirely formed on the first surface of substrate, and the two ends of circuit coil can
To be bonded directly to first antenna electrode A ED1 and the second antenna electrode on the first surface of substrate respectively
AED2。
Match circuit 200 can be combined between NFC antenna 100 and NFC chip 300.Coupling electricity
Road 200 performs impedance matching between NFC antenna 100 and NFC chip 300.Match circuit 200
The capacitor forming resonance circuit together with NFC antenna 100 can be included.Can be based on match circuit 200
The resonant frequency of NFC device 20 is adjusted to desired frequency (example by the electric capacity of the capacitor included
As, 13.56MHz).
Under card reader pattern, NFC chip 300 can produce transmission signal and by match circuit 200
NFC antenna 100 is provided by transmission signal.NFC antenna 100 can launch electromagnetism based on sending signal
Ripple is to carry out data communication with outside nfc card.Because outside nfc card includes resonance circuit, and humorous
The circuit that shakes includes antenna and the resonant capacitor with inducer, so launching electromagnetism in NFC antenna 100
While ripple EMW, can outside nfc card near NFC antenna 100 and NFC device 20
Between occur mutual inductance.Therefore, outside nfc card can be by being demodulated the signal produced by mutual inductance
Receive and send signal.
Under mode card, because by the electromagnetic wave EMW from outside NFC reader transmitting at NFC
Mutual inductance is there is, so NFC antenna 100 can be matched between antenna 100 and outside NFC reader
Circuit 200 provides aerial voltage to NFC chip 300, wherein, by mutual inductance at first antenna electrode
AED1 and the second antenna electrode AED2 produces aerial voltage.NFC chip 300 can be by antenna
Voltage is demodulated receiving the data sent from outside NFC reader.
Fig. 3 and Fig. 4 is the figure of the example of the NFC antenna illustrating that the NFC device of Fig. 2 includes.
With reference to Fig. 3 and Fig. 4, NFC antenna 100a can be formed in substrate 110.
NFC antenna 100a can include the first surface (such as, upper surface) being formed at substrate 110
On first antenna electrode A ED1, the second antenna electrode AED2 and circuit coil 120.First antenna electricity
Pole AED1 and the second antenna electrode AED2 can be separated from one another.It addition, show as in Fig. 3 and Fig. 4
Going out, first antenna electrode A ED1 and the second antenna electrode AED2 can be formed at the of substrate 110
On one surface so that through first antenna electrode A ED1 and the imaginary line IL of the second antenna electrode AED2
One be parallel in the edge of substrate 110.
Circuit coil 120 can include multiturn.Circuit coil 120 can be at the first surface of substrate 110
On be directly incorporated between first antenna electrode A ED1 and the second antenna electrode AED2.Circuit coil 120
Multiturn can not be stacked.In one or more exemplary embodiment, circuit coil 120 can
Formed with any metal material with high conductivity by such as copper, silver, aluminum etc..
In figure 3, circuit coil 120 is shown as including two circles.In the diagram, circuit coil 120 shows
Go out for including five circles.But, exemplary embodiment is not limited to this, and circuit coil 120 can contain more than
Two circles.
As shown in Fig. 3 and Fig. 4, first antenna electrode A ED1 may be located at circuit coil 120
The inside of the every circle in multiturn, the second antenna electrode AED2 may be located in the multiturn of circuit coil 120
The outside of every circle.
That is, the multiturn of circuit coil 120 can be formed as at first antenna electrode A ED1 and the second antenna
Pass through between electrode A ED2.Therefore, the first end of circuit coil 120 can be bonded directly in loop
First antenna electrode A ED1 within the multiturn of coil 120, the second end of circuit coil 120 can be straight
Meet the second antenna electrode AED2 being attached to outside the multiturn of circuit coil 120.
In figs. 3 and 4, the every circle in the multiturn of circuit coil 120 is shown as having rectangular shape.
But, exemplary embodiment is not limited to this, and the every circle in the multiturn of circuit coil 120 can have circle
Shape, elliptical shape or any other shape.
According in NFC antenna 100a of exemplary embodiment, the multiturn of circuit coil 120 can be with shape
Become and pass through between first antenna electrode A ED1 and the second antenna electrode AED2 so that first antenna
Electrode A ED1 may be located at the inside of the every circle in the multiturn of circuit coil 120, the second antenna electrode
AED2 may be located at the outside of the every circle in the multiturn of circuit coil 120.Therefore, circuit coil 120
Two ends can be bonded directly to respectively on the first surface of substrate 110 first antenna electrode A ED1 and
Second antenna electrode AED2, the multiturn of coincidence circuit coil 120 can not be stacked.
As it has been described above, NFC antenna 100a of one or more exemplary embodiment is formed according to because of
On a surface of substrate 110, it is possible to reduce the manufacturing cost of NFC antenna 100a, permissible
Improve the yield rate of NFC antenna 100a, and the thickness of NFC antenna 100a can be reduced.
Fig. 5 be illustrate according to one or more exemplary embodiment its on be formed with the substrate of antenna
Figure.
In one or more exemplary embodiment, substrate 110 can correspond to printed circuit board (PCB)
(PCB).In other exemplary embodiments of the invention, substrate 110 can correspond to flexible printed circuit board
(FPCB)。
In one or more exemplary embodiment, as shown in Figure 5, NFC antenna 100a is also
The magnetic sheet 160 being arranged on second surface (such as, the lower surface) lower section of substrate 110 can be included.The
Two surfaces with its on be formed with first antenna electrode A ED1, the second antenna electrode AED2 and circuit coil
The opposed surface of the first surface of the substrate 110 of 120 is corresponding.That is, magnetic sheet 160 can be arranged on and return
Map 120 is launched on the direction in opposite direction of electromagnetic wave EMW.Magnetic sheet 160 can be by preventing
The eddy current that causes due to the change in the magnetic field at substrate 110 for the magnetic field of NFC and reduce and improve back
The magnetic field radiation efficiency of map 120.Such as, magnetic sheet 160 can be ferrite sheet or magnetodielectric material
Material (MDM) sheet.
Fig. 6 is the block diagram of the example of the NFC device illustrating Fig. 2.
With reference to Fig. 6, NFC device 20a can include NFC antenna 100a, match circuit 200a and NFC
Chip 300a.
NFC antenna 100a that NFC device 20a of Fig. 6 includes can be with the NFC of Fig. 3 and Fig. 4
Antenna 100a realizes.
In figure 6, present NFC antenna 100a, as NFC antenna 100a of Fig. 3 and Fig. 4
Equivalent circuit.That is, the inductance that the circuit coil 120 that NFC antenna 100a includes is expressed as in Fig. 6
Device LL.
Match circuit 200a can be combined between NFC antenna 100a and NFC chip 300a.Such as,
Match circuit 200a can be attached to by first antenna electrode A ED1 and the second antenna electrode AED2
NFC antenna 100a, and it is attached to NFC by the first sender electrode TX1 and the second sender electrode TX2
Chip 300a.Match circuit 200a can perform between NFC antenna 100a and NFC chip 300a
Impedance matching.
In one or more exemplary embodiment, match circuit 200a can include the first capacitor
C1, the second capacitor C2 and the 3rd capacitor C3.First capacitor C1 can be combined in first antenna
Between electrode A ED1 and the second antenna electrode AED2.First capacitor C1 can be with NFC antenna 100a
The circuit coil 120 included forms resonance circuit together.Can be by controlling the electricity of the first capacitor C1
Hold and the resonant frequency of NFC device 20a is adjusted to desired frequency (such as, 13.56MHz).The
Two capacitor C2 can be combined between first antenna electrode A ED1 and the first sender electrode TX1.The
Three capacitor C3 can be combined between the second antenna electrode AED2 and the second sender electrode TX2.So
And, the match circuit 200a of Fig. 6 is only example.According to one or more exemplary embodiment, coupling
Circuit 200a can realize so that between NFC antenna 100a and NFC chip 300a with various structures
Perform impedance matching.
NFC chip 300a can include CPU (CPU) 310, storage arrangement 320,
First manipulator 331, agitator 333, frequency mixer (mixer) 335 and transtation mission circuit 330.
When NFC chip 300a performs to send operation under card reader pattern, CPU 310 can be from depositing
Reservoir device 320 reads output data TD so that output data TD to provide the first manipulator 331, and the
One manipulator 331 can be modulated producing modulated signal MS, agitator 333 to output data TD
Can produce carrier signal CW with carrier frequency (such as, 13.56MHz), frequency mixer 335 can
To produce transmission modulated signal TMS by synthesis carrier signal CW and modulated signal MS.
Transtation mission circuit 330 can be combined between supply voltage VDD and ground voltage GND.
Transtation mission circuit 330 can through the first sender electrode TX1 and the second sender electrode TX2 export with from
The transmission signal TS that transmission modulated signal TMS that frequency mixer 355 receives is corresponding.NFC antenna 100a
Electromagnetic wave EMW can be launched based on sending signal TS.
In one or more exemplary embodiment, transtation mission circuit 330 can be by based on sending modulation
Signal TMS makes the first sender electrode TX1 and the second sender electrode TX2 be connected to power supply through pull-up load
Voltage VDD or be connected to ground voltage GND through pull-down load, come through the first sender electrode TX1 and
The transmission signal TS that second sender electrode TX2 output is corresponding with sending modulated signal TMS.
Such as, transtation mission circuit 330 can make the first sender electrode TX1 based on sending modulated signal TMS
It is connected to supply voltage VDD through pull-up load and makes the second sender electrode TX2 connect through pull-down load
To ground voltage GND, or the first sender electrode TX1 is made to be connected to ground voltage GND through pull-down load
And make the second sender electrode TX2 be connected to supply voltage VDD through pull-up load, thus through first
The transmission signal that sending electrode TX1 and the second sender electrode TX2 output is corresponding with sending modulated signal TMS
TS。
When transtation mission circuit 330 makes the first sender electrode TX1 be connected to supply voltage VDD through pull-up load
And make the second sender electrode TX2 when pull-down load is connected to ground voltage GND, can be from power supply
Voltage VDD produces output electric current, provides match circuit 200a and NFC through the first sender electrode TX1
Antenna 100a, and it is down to ground voltage GND through the second sender electrode TX2.
When transtation mission circuit 330 makes the first sender electrode TX1 be connected to ground voltage GND through pull-down load
And make the second sender electrode TX2 through pull up load be connected to supply voltage VDD time, can be from power supply
Voltage VDD produces output electric current, provides match circuit 200a and NFC through the second sender electrode TX2
Antenna 100a, and it is down to ground voltage GND through the first sender electrode TX1.
Fig. 7 is the block diagram of the example of the transtation mission circuit illustrating that the NFC device of Fig. 6 includes.
With reference to Fig. 7, transtation mission circuit 330 can include that first pulls up transistor MP0, crystal pulling on second
Pipe MP1, the first pull-down transistor MN0, the second pull-down transistor MN1 and drive circuit 337.
First MP0 and second MP1 that pulls up transistor that pulls up transistor can be p-type metal-oxide half
Conductor (PMOS) transistor.First pull-down transistor MN0 and the second pull-down transistor MN1 is permissible
It it is n-type metal oxide semiconductor (NMOS) transistor.
First MP0 that pulls up transistor can be combined in supply voltage VDD and the first sender electrode TX1
Between, the first pull-down transistor MN0 can be combined in the first sender electrode TX1 and ground voltage GND
Between.
Second MP1 that pulls up transistor can be combined in supply voltage VDD and the second sender electrode TX2
Between, the second pull-down transistor MN1 can be combined in the second sender electrode TX2 and ground voltage GND
Between.
Drive circuit 337 can use the first pulling drive signal UDS0 to drive first to pull up transistor
MP0, uses the first drop-down driving signal DDS0 to drive the first pull-down transistor MN0, uses on second
Draw driving signal UDS1 drive second pull up transistor MP1 and use the second drop-down driving signal
DDS1 drives the second pull-down transistor MN1.
Drive circuit 337 can make first based on transmission modulated signal TMS received from frequency mixer 335
Pull up transistor one in MP0 and the first pull-down transistor MN0 and turn on and make crystal pulling on second
A conducting in pipe MP1 and the second pull-down transistor MN1.
Such as, drive circuit 337 can make first to pull up transistor MP0 based on sending modulated signal TMS
With the second pull-down transistor MN1 conducting, second is made to pull up transistor MP1 and the first pull-down transistor
MN0 ends, or makes second to pull up transistor MP1 and the first pull-down transistor MN0 conducting, makes the
One pull up transistor MP0 and the second pull-down transistor MN1 cut-off, in order to through the first sender electrode TX1
The transmission signal TS corresponding with sending modulated signal TMS with the second sender electrode TX2 output.
Fig. 8 is the block diagram of the example of the NFC device illustrating Fig. 2.
With reference to Fig. 8, NFC device 20b can include NFC antenna 100a, match circuit 200b and NFC
Chip 300b.
NFC antenna 100a that NFC device 20b of Fig. 8 includes can be with the NFC device of Fig. 6
NFC antenna 100a that 20a includes is identical.
Match circuit 200b can be combined between NFC antenna 100a and NFC chip 300b.Such as,
Match circuit 200b can be attached to by first antenna electrode A ED1 and the second antenna electrode AED2
NFC antenna 100a, and by the first sender electrode TX1, the second sender electrode TX2 and reception electricity
Pole RX is attached to NFC chip 300b.Match circuit 200b can perform NFC antenna 100a and NFC
Impedance matching between chip 300b.
Compared with the match circuit 200a that NFC device 20a of Fig. 6 includes, the NFC device of Fig. 8
The match circuit 200b that 20b includes can also include the 4th capacitor C4.4th capacitor C4 is permissible
It is combined in first antenna electrode A ED1 and receives between electrode RX.Exemplary according to one or more
Embodiment, the 4th capacitor C4 can be combined in the second antenna electrode AED2 and receive between electrode RX.
But, the matched electrodes 200b shown in Fig. 8 is only example.According to one or more exemplary enforcement
Example, match circuit 200b can realize with various structures to perform NFC antenna 100a and NFC core
Impedance matching between sheet 300b.
Compared with NFC chip 300a that NFC device 20a of Fig. 6 includes, the NFC dress of Fig. 8
Put NFC chip 300b that 20b includes and can also include the first demodulator 340.
As it has been described above, under card reader pattern, NFC antenna 100a can launch electromagnetic wave EMW with
Data communication is carried out with outside nfc card.Because outside nfc card includes resonance circuit, and resonance electricity
Road includes antenna and the resonant capacitor with Inductive component, so launching electromagnetism in NFC antenna 100a
While ripple EMW, can outside NFC near NFC antenna 100a and NFC device 20b
Mutual inductance is there is between card.Therefore, it can by mutual inductance at first antenna electrode A ED1 and the second antenna electric
Pole AED2 produces aerial voltage.
Aerial voltage can be provided by the 4th capacitor C4 and reception electrode RX as receiving signal
NFC chip 300b.
When NFC chip 300b performs to receive operation under card reader pattern, the first demodulator 340 can
With by being demodulated producing input data to being received the reception signal that electrode RX receives, and will
Input data provide CPU 310.Input data can be stored in storage arrangement 320 by CPU 310
In.
Fig. 9 is the block diagram of the example of the NFC device illustrating Fig. 2.
With reference to Fig. 9, NFC device 20c can include NFC antenna 100a, match circuit 200c and NFC
Chip 300c.
NFC antenna 100a that NFC device 20c of Fig. 9 includes can be with the NFC device of Fig. 6
NFC antenna 100a that 20a includes is identical.
Match circuit 200c can be combined between NFC antenna 100a and NFC chip 300c.Such as,
Match circuit 200c can be attached to by first antenna electrode A ED1 and the second antenna electrode AED2
NFC antenna 100a, and by the first sender electrode TX1, the second sender electrode TX2, reception electrode
RX, the first electric power electrode L1 and the second electric power electrode L2 are attached to NFC chip 300c.Match circuit
200c can perform the impedance matching between NFC antenna 100a and NFC chip 300c.
Compared with the match circuit 200b that NFC device 20b of Fig. 8 includes, the NFC device of Fig. 9
The match circuit 200c that 20c includes can also include the 5th capacitor C5 and the 6th capacitor C6.The
Five capacitor C5 can be combined between first antenna electrode A ED1 and the first electric power electrode L1.6th
Capacitor C6 can be combined between the second antenna electrode AED2 and the second electric power electrode L2.But,
Match circuit 200c shown in Fig. 9 is only example.According to one or more exemplary embodiment,
Distribution road 200c can realize with various structures, in order to performs NFC antenna 100a and NFC chip 300c
Between impedance matching.
Compared with NFC chip 300b that NFC device 20b of Fig. 8 includes, the NFC dress of Fig. 9
Put NFC chip 300c that 20c includes and can also include commutator 351, adjustor (regulator)
353, power switch the 357, second demodulator 360 and the second manipulator 370.
As it has been described above, under mode card, NFC device 20c can use to be sent out by outside NFC reader
The electromagnetic wave EMW penetrated and outside NFC reader communication.I.e., it is possible to based on by outside NFC Card Reader
Mutual inductance is there is in the electromagnetic wave EMW that device is launched between NFC antenna 100a and outside NFC reader.
Therefore, it can produce antenna by mutual inductance in first antenna electrode A ED1 and the second antenna electrode AED2
Voltage VAN.
Aerial voltage VAN can be delivered to by the 5th capacitor C5 and the 6th capacitor C6 respectively
One electric power electrode L1 and the second electric power electrode L2.
Commutator 351 can be by receiving through the first electric power electrode L1 and the second electric power electrode L2
Aerial voltage VAN carries out rectification and produces the first voltage V1 (it is DC voltage).
Adjustor 353 can use the first voltage V1 generation to have and can use in NFC chip 300c
The builtin voltage VINT of voltage level of predefined size.
CPU 310 can control all operations of NFC chip 300c.Can use by such as battery
The supply voltage VDD that power supply provides operates CPU 310.It addition, CPU 310 can be through power switch
357 receive builtin voltage VINT from adjustor 353.When supply voltage VDD is equal to or higher than predetermined electricity
During voltage level, CPU 310 can use supply voltage VDD to operate, and disabled switch control signal
SCS is to disconnect power switch 357.When supply voltage VDD is less than predetermined voltage level, CPU 310
Switch controlling signal SCS can be enabled to connect power switch 357 so that CPU 310 can use by
The builtin voltage VINT that adjustor 353 provides operates.
When performing to receive operation under NFC chip 300c is at mode card, the second demodulator 360 can lead to
Cross be demodulated the signal received through the first electric power electrode L1 and the second electric power electrode L2 producing defeated
Enter data, and provide CPU 310 by input data.Input data can be stored in by CPU 310
In storage arrangement 320.
When performing to send operation under NFC chip 300c is at mode card, CPU 310 can be from memorizer
Device 320 reads output data so that output data to provide the second manipulator 370, the second manipulator 370
Can be modulated exporting modulation through the first electric power electrode L1 and the second electric power electrode L2 to output data
Signal.Such as, the second manipulator 370 can produce modulation by output data are performed load modulation
Signal.NFC antenna 100a can be by coming with outside NFC reader generation mutual inductance based on modulated signal
Output data are sent to outside NFC reader.
Figure 10 is the figure of the example of the NFC antenna illustrating that the NFC device of Fig. 2 includes.
With reference to Figure 10, NFC antenna 100b can be formed in substrate 110.
NFC antenna 100b can include the first surface (such as, upper surface) being formed at substrate 110
On first antenna electrode A ED1, the second antenna electrode AED2, circuit coil 120 and resonance coil
130。
First antenna electrode A ED1 that NFC antenna 100b of Figure 10 includes, the second antenna electrode
The first antenna that AED2 and circuit coil 120 can include with NFC antenna 100a of Fig. 3 and Fig. 4
Electrode A ED1, the second antenna electrode AED2 are identical with circuit coil 120.Therefore, except NFC days
Line 100b also includes outside resonance coil 130, and NFC antenna 100b of Figure 10 can be with Fig. 3 and Fig. 4
NFC antenna 100a identical.
Although in Fig. 10, the circuit coil 120 that NFC antenna 100b includes is shown as having two circles,
But exemplary embodiment is not limited to this, describe as explained above with Fig. 3 and Fig. 4.According to one or more
Multiple exemplary embodiments, circuit coil 120 can contain more than two circles.
Resonance coil 130 can include multiturn.It addition, resonance coil 130 can be formed as and return line
Circle 120, first antenna electrode A ED1 and the second antenna electrode AED2 are physically separated.At one or
In more exemplary embodiments, resonance coil 130 can be led by the height that has of such as copper, silver, aluminum etc.
Any metal material of electricity rate is formed.
In one or more exemplary embodiment, resonance coil 130 may be located at circuit coil 120
Internal.Such as, as shown in Figure 10, resonance coil 130 may be located at the multiturn of circuit coil 120
Interior circle inside.
Because capacitor parasitics is formed between each circle in the multiturn of resonance coil 130, so resonance line
Circle 130 can be expressed as including inducer and be attached to the equivalent electric of capacitor of inducer in parallel
Road.Therefore, resonance coil 130 can be formed as including the suitable number of turn so that resonance coil 130
Self-resonant frequency can correspond to 13.56MHz.
Because resonance coil 130 is physically separated out with circuit coil 120, so resonance coil 130 can
Not receive the signal of telecommunication from circuit coil 120.But, resonance coil 130 can be with circuit coil 120
Magnetic knot closes.Therefore, resonance coil 130 can be based on the electromagnetic wave EMW received from circuit coil 120
Launch electromagnetic wave.
In one or more exemplary embodiment, the resonant frequency of resonance coil 130 can be with loop
The resonant frequency of coil 120 is essentially identical so that resonance coil 130 can be from by circuit coil 120
The electromagnetic wave EMW penetrated is efficiently received electric power.Such as, the resonant frequency of resonance coil 130 and loop
The resonant frequency of coil 120 can correspond to 13.56MHz.
It addition, resonance coil 130 can be disposed adjacently with circuit coil 120 so that resonance coil 130
Electric power can be efficiently received from the electromagnetic wave EMW launched by circuit coil 120.Such as, return line
Distance LLD1 between the outermost turn of the interior circle of the multiturn of circle 120 and the multiturn of resonance coil 130 can
With less than 2mm.
In Fig. 10, the every circle in the multiturn of resonance coil 130 is shown as having rectangular shape.But,
Exemplary embodiment is not limited to this, the every circle in the multiturn of resonance coil 130 can have round-shaped,
Elliptical shape or arbitrarily other shape.
As explained above with described in Fig. 3, Fig. 4 and Figure 10, because NFC antenna 100b is formed at substrate 110
A surface on, it is possible to reduce NFC antenna 100b manufacturing cost, can improve NFC days
The yield rate of line 100b, it is possible to reduce the thickness of NFC antenna 100b.
It addition, loop can be passed through according to NFC antenna 100b of one or more exemplary embodiment
Electromagnetic wave EMW launched by coil 120, and by the resonance coil 130 closed with circuit coil 120 magnetic knot
Additionally launch electromagnetic wave EMW.Because resonance coil 130 is physically separated with match circuit 200, institute
Relatively high Q factor (quality factor) can be had with resonance coil 130.Therefore, by resonance coil
The intensity of the 130 electromagnetic wave EMW launched can be relatively high.So, when the NFC device 20 of Fig. 2
When being embodied as NFC antenna 100b including Figure 10, can effectively increase the communication of NFC device 20
Scope.
Figure 11 is the block diagram of the example of the NFC device illustrating Fig. 2.
With reference to Figure 11, NFC device 20d can include NFC antenna 100b, match circuit 200 and
NFC chip 300.
NFC antenna 100b that NFC device 20d of Figure 11 includes can be with NFC days of Figure 10
Line 100b realizes.
In fig. 11, NFC antenna 100b can be presented, as NFC antenna 100b of Figure 10
Equivalent circuit.That is, the circuit coil 120 that NFC antenna 100b includes can be expressed as in Figure 11
Inducer LL, the resonance coil 130 that NFC antenna 100b includes can be expressed as the electricity in Figure 11
Sensor LR1 and be attached to the capacitor CP of inducer LR1 in parallel.
Match circuit 200 and NFC chip 300 that NFC device 20d of Figure 11 includes can be with figures
Match circuit 200a and the NFC of NFC chip 300a, Fig. 8 that NFC device 20a of 6 includes fill
Put match circuit 200b and NFC chip 300b or NFC device 20c of Fig. 9 that 20b includes
The match circuit 200c included and NFC chip 300c realize.
Describe as explained above with Figure 10 and Figure 11, NFC antenna 100b that NFC device 20d includes
Electromagnetic wave EMW can be launched by circuit coil 120, and by closing with circuit coil 120 magnetic knot
Resonance coil 130 additionally launches electromagnetic wave EMW.Because resonance coil 130 and match circuit 200
It is physically separated, so resonance coil 130 can have relatively high Q factor (quality factor).Cause
This, resonance coil 130 intensity of the electromagnetic wave EMW launched can be relatively high.As such, it is possible to have
Effect ground increases the communication range of NFC device 20d.
Figure 12 is the figure of the example of the NFC antenna illustrating that the NFC device of Fig. 2 includes.
With reference to Figure 12, NFC antenna 100c can be formed in substrate 110.
NFC antenna 100c can include the first surface (such as, upper surface) being formed at substrate 110
On first antenna electrode A ED1, the second antenna electrode AED2, circuit coil 120, resonance coil 140
With resonant capacitor 150.
First antenna electrode A ED1 that NFC antenna 100c of Figure 12 includes, the second antenna electrode
The first antenna that AED2 and circuit coil 120 can include with NFC antenna 100a of Fig. 3 and Fig. 4
Electrode A ED1, the second antenna electrode AED2 are identical with circuit coil 120.Therefore, except NFC days
Line 100c also includes outside resonance coil 140 and resonant capacitor 150, NFC antenna 100c of Figure 12
Can be identical with NFC antenna 100a of Fig. 3 and Fig. 4.
Although in fig. 12, the circuit coil 120 that NFC antenna 100c includes is shown as having two circles,
But exemplary embodiment is not limited to this, describe as explained above with Fig. 3 and Fig. 4.According to one or more
Multiple exemplary embodiments, circuit coil 120 can contain more than two circles.
Resonance coil 140 can include a circle.It addition, resonance coil 140 can be formed as and return line
Circle 120, first antenna electrode A ED1 and the second antenna electrode AED2 are physically separated.Show at some
In example embodiment, resonance coil 140 can by such as copper, silver, aluminum etc. have high conductivity appoint
Meaning metal material is formed.
Resonant capacitor 150 can be combined between the two ends of resonance coil 140.
In one or more exemplary embodiment, resonance coil 140 and resonant capacitor 150 are permissible
It is positioned at circuit coil 120 internal.Such as, as shown in Figure 12, resonance coil 140 and resonant capacitance
Device 150 may be located at inside the interior circle of the multiturn of circuit coil 120.
Because resonance coil 140 and resonant capacitor 150 parallel connection combine, so resonance coil 140
Resonance circuit can be formed with resonant capacitor 150.The electric capacity of resonant capacitor 150 can be adjusted, make
The resonant frequency obtaining resonance circuit can correspond to 13.56MHz.
Because resonance coil 140 is physically separated with circuit coil 120, so resonance coil 140 is permissible
The signal of telecommunication is not received from circuit coil 120.But, by resonance coil 140 and resonant capacitor 150 shape
The resonance circuit become can close with circuit coil 120 magnetic knot.Therefore, resonance coil 140 can based on from
The electromagnetic wave EMW that circuit coil 120 receives launches electromagnetic wave.
In one or more exemplary embodiment, the resonant frequency of resonance circuit can be with circuit coil
The resonant frequency of 120 is essentially identical so that resonance coil 140 can be from being launched by circuit coil 120
Electromagnetic wave EMW is efficiently received electric power.Such as, the resonant frequency of resonance circuit and circuit coil 120
Resonant frequency can correspond to 13.56MHz.
It addition, resonance coil 140 can be disposed adjacently with circuit coil 120 so that resonance coil 140
Electric power can be efficiently received from the electromagnetic wave EMW launched by circuit coil 120.Such as, return line
Distance LLD2 between interior circle and the resonance coil 140 of the multiturn of circle 120 can be less than 2mm.
In fig. 12, the every circle in the multiturn of resonance coil 140 is shown as having rectangular shape.But,
Exemplary embodiment is not limited to this, the every circle in the multiturn of resonance coil 140 can have round-shaped,
Elliptical shape or arbitrarily other shape.
As explained above with described in Fig. 3, Fig. 4 and Figure 12, because of according to one or more exemplary enforcement
NFC antenna 100c of example is formed on a surface of substrate 110, it is possible to reduce NFC antenna
The manufacturing cost of 100c, can improve the yield rate of NFC antenna 100c, it is possible to reduce NFC antenna
The thickness of 100c.
It addition, loop can be passed through according to NFC antenna 100c of one or more exemplary embodiment
Electromagnetic wave EMW launched by coil 120, and by the resonance coil 140 closed with circuit coil 120 magnetic knot
Additionally launch electromagnetic wave EMW.Because resonance coil 140 is physically separated with match circuit 200, institute
Relatively high Q factor (quality factor) can be had with resonance coil 140.Therefore, by resonance coil
The intensity of the 140 electromagnetic wave EMW launched can be relatively high.So, when the NFC device 20 of Fig. 2
When being embodied as NFC antenna 100c including Figure 12, can effectively increase the communication of NFC device 20
Scope.
Although it addition, the resonance coil 130 that NFC antenna 100b includes includes that multiturn makes resonance line
The self-resonant frequency of circle 130 can correspond to 13.56MHz, but the resonance that NFC antenna 100c includes
Coil 140 can include a circle, resonance coil 140 and resonant capacitor 150 resonance circuit formed
Resonant frequency can be set as 13.56MHz by adjusting the electric capacity of resonant capacitor 150.
Figure 13 is the block diagram of the example of the NFC device illustrating Fig. 2.
With reference to Figure 13, NFC device 20e can include NFC antenna 100c, match circuit 200 and NFC
Chip 300.
NFC antenna 100c that NFC device 20e of Figure 13 includes can be with NFC days of Figure 12
Line 100c realizes.
In fig. 13, NFC antenna 100c can be presented, as NFC antenna 100c of Figure 12
Equivalent circuit.That is, the circuit coil 120 that NFC antenna 100c includes can be expressed as in Figure 13
Inducer LL, the resonance coil 140 that NFC antenna 100c includes can be expressed as the electricity in Figure 13
Sensor LR2, the resonant capacitor 150 that NFC antenna 100c includes can be expressed as the electricity in Figure 13
Container CC.
Match circuit 200 and NFC chip 300 that NFC device 20e of Figure 13 includes can be with figures
Match circuit 200a and the NFC of NFC chip 300a, Fig. 8 that NFC device 20a of 6 includes fill
Put match circuit 200b and NFC chip 300b or NFC device 20c of Fig. 9 that 20b includes
The match circuit 200c included and NFC chip 300c realize.
Describe as explained above with Figure 12 and Figure 13, NFC antenna 100c that NFC device 20e includes
Electromagnetic wave EMW can be launched by circuit coil 120, and by closing with circuit coil 120 magnetic knot
Resonance coil 140 additionally launches electromagnetic wave EMW.Because resonance coil 140 and match circuit 200
It is physically separated, so resonance coil 140 can have relatively high Q factor (quality factor).Cause
This, resonance coil 140 intensity of the electromagnetic wave EMW launched can be relatively high.As such, it is possible to have
Effect ground increases the communication range of NFC device 20e.
Figure 14 and Figure 15 is to illustrate that the NFC antenna that the NFC device of Fig. 2 includes is arranged on mobile dress
The figure of the example in putting.
In fig. 14 it is shown that the dorsal part not having dorsal part lid of mobile device 10.
In one or more exemplary embodiment, as shown in Figure 14, NFC antenna 100 can
To be arranged on the battery (set of cells) 11 of mobile device 10.
Match circuit 200 and NFC chip 300 that NFC device 20 includes can be arranged on mobile dress
Put the inside of the main body of 10.
First antenna electrode A ED1 of NFC antenna 100 and the second antenna electrode AED2 can be by electricity
Pond 11 is attached to the electrode used by the main body of mobile device 10 and is electrically connected to match circuit 200.
First antenna electrode A ED1 and the second antenna electrode AED2 of NFC antenna 100 can lean on each other
Near-earth is arranged.Such as, as shown in Figure 14, install when the substrate 110 including NFC antenna 100
Time on the battery 11 of mobile device 10, first antenna electrode A ED1 and the second antenna electrode AED2
Between distance can be less than 10mm, such as, in the scope of 2mm to 10mm.
In fig. 15 it is shown that the dorsal part lid 13 of mobile device 10 and mobile device 10 does not has dorsal part
The dorsal part of lid 13.
In one or more exemplary embodiment, as shown in Figure 15, NFC antenna 100 can
To be arranged on the inner surface of dorsal part lid 13 of mobile device 10.
Match circuit 200 and NFC chip 300 that NFC device 20 includes can be arranged on mobile dress
Put the inside of the main body of 10.It addition, as shown in Figure 15, be attached to the first of match circuit 200
Electrode 15 and the second electrode 17 can be formed on the dorsal part of mobile device 10.
First antenna electrode A ED1 and the second antenna electrode AED2 of NFC antenna 100 can lean on each other
Near-earth is arranged.Such as, as shown in Figure 15, install when the substrate 110 including NFC antenna 100
Time on the inner surface of the dorsal part lid 13 of mobile device 10, first antenna electrode A ED1 and the second antenna
Distance between electrode A ED2 can be less than 20mm, such as, in the scope of 2mm to 20mm.
When dorsal part lid 13 is attached to the dorsal part of mobile device 10, the first antenna electricity of NFC antenna 100
Pole AED1 and the second antenna electrode AED2 can be electrically connected respectively to the first electrode 15 and the second electrode
17.Therefore, first antenna electrode A ED1 and the second antenna electrode AED2 of NFC antenna 100 are permissible
It is electrically connected to match circuit 200 respectively by the first electrode 15 and the second electrode 17.
In one or more exemplary embodiment, NFC antenna 100 may be mounted at mobile device 10
Fuselage ring inner surface on.In this case, first antenna electrode A ED1 and the second antenna electric
Distance between the AED2 of pole can be in the scope of 1mm to 20mm.
Figure 16 is the block diagram illustrating the mobile system according to exemplary embodiment.
With reference to Figure 16, mobile system 1000 include application processor AP 1100, NFC device 1200,
Storage arrangement 1300, user interface 1400 and power supply 1500.Application processor 1100, NFC device
1200, storage arrangement 1300, user interface 1400 and power supply 1500 can pass through internal bus 1001
Combine.
In one or more exemplary embodiment, mobile system 1000 can be such as mobile phone,
Smart phone, personal digital assistant (PDA), portable media player (PMP), digital camera,
Video camera, music player, portable game console, navigation system etc..
Application processor 1100 controls all operations of mobile system 1000.Application processor 1100 is permissible
Perform the application of such as web browser, game application, video player etc..Show at one or more
In example embodiment, application processor 1100 can include monokaryon or multinuclear.Such as, application processor 1100
It can be the polycaryon processor of such as dual core processor, four core processors, six core processors etc..Answer use
Reason device 1100 can include internal cache or external cache.
Storage arrangement 1300 stores various data.Such as, can store will for storage arrangement 1300
The output data being sent to external device (ED) and the input data received from external device (ED).One or more
In individual exemplary embodiment, storage device 1300 can be Electrically Erasable Read Only Memory
(EEPROM), flash memory, phase change random access memory devices (PRAM), resistive ram
(RRAM), nanometer floating-gate memory (NFGM), polymer random access memory (PoRAM),
Magnetic RAM (MRAM), ferroelectric RAM (FRAM) etc..
NFC device 1200 will be stored in the output data in storage arrangement 1300 by NFC and sends
To external device (ED).NFC device 1200 receives input data and by input by NFC from external device (ED)
Data are stored in storage arrangement 1300.
NFC device 1200 includes NFC antenna 1210, match circuit 1220 and NFC chip 1230.
NFC device 1200 can realize by the NFC device 20 of Fig. 2.
User interface 1400 can include such as keypad, touch screen etc. at least one input equipment and
At least one output device of such as speaker, display device etc..Supply voltage can be supplied by power supply 1500
Mobile system 1000 should be arrived.
In one or more exemplary embodiment, mobile system 1000 can also include image processor
And/or the storage device of such as memory card, solid state hard disc (SSD) etc..
In one or more exemplary embodiment, mobile system 1000 and/or mobile system 1000
Assembly can be packaged into various forms, such as package on package (POP), BGA (BGA), core
Chip size package (CSP), plastic leaded chip carrier (PLCC), plastics dual-inline package (PDIP),
Nude film (die in waffle pack) in Waffle pack, the nude film (die in wafer form) of wafer format,
Chip on board (COB), ceramic dual in-line package (CERDIP), plastics metric system quad flat package
(MQFP), slim quad flat package (TQFP), little profile IC (SOIC), the little profile of shrunk type
Encapsulation (SSOP), Thin Small Outline Package (TSOP), system in package (SIP), multi-chip package
(MCP), wafer scale manufacture encapsulation (WFP) or the stacked package (WSP) of wafer level processing.
Aforementioned is the illustration to present inventive concept, and is not necessarily to be construed as the limit to present inventive concept
System.Although it have been described that some exemplary embodiments, but those skilled in the art artisan will readily appreciate that
, substantially without departing from the novel teachings of present inventive concept and advantage in the case of, it is possible to retouching
The exemplary embodiment stated makes many amendments.Therefore, all such modifications are intended to be included within the present invention
Within the scope of design.It is illustrating to various exemplary embodiments it will be appreciated, therefore, that aforementioned
Bright, and should not be construed as limited to disclosed specific exemplary embodiment, and to disclosed
The amendment of exemplary embodiment and other exemplary embodiment be intended to be included in scope of the following claims it
In.
Claims (20)
1. a near-field communication aerial, described near-field communication aerial includes:
First antenna electrode and the second antenna electrode, first antenna electrode and the second antenna electrode are formed on
On the first surface of substrate；And
Circuit coil, is formed on the first surface of substrate, and circuit coil is directly incorporated in first antenna electricity
Between pole and the second antenna electrode, and include the first multiturn,
Wherein, first antenna electrode is positioned at the inside of the every circle in described first multiturn of circuit coil, the
Two antenna electrodes are positioned at the outside of the every circle in described first multiturn of circuit coil,
Wherein, the imaginary line through first antenna electrode and the second antenna electrode is parallel in the edge of substrate
One,
Wherein, the every circle in described first multiturn of circuit coil is not stacked.
Near-field communication aerial the most according to claim 1, wherein, described more than the first of circuit coil
Circle is between first antenna electrode and the second antenna electrode.
Near-field communication aerial the most according to claim 1, wherein, first antenna electrode and second day
Distance between line electrode is in the range of 2mm to 20mm.
Near-field communication aerial the most according to claim 1, wherein, described more than the first of circuit coil
Every circle in circle has rectangular shape.
Near-field communication aerial the most according to claim 1, wherein, described more than the first of circuit coil
Every circle in circle has round-shaped.
Near-field communication aerial the most according to claim 1, wherein, substrate includes flexible print circuit
Plate.
Near-field communication aerial the most according to claim 1, wherein, substrate is configured to be arranged on shifting
On the battery of dynamic device,
Wherein, the distance between first antenna electrode and the second antenna electrode is less than 10mm.
Near-field communication aerial the most according to claim 1, wherein, substrate is configured to be arranged on shifting
On the dorsal part lid of dynamic device,
Wherein, the distance between first antenna electrode and the second antenna electrode is less than 20mm.
Near-field communication aerial the most according to claim 1, described near-field communication aerial also includes:
Resonance coil, is formed on the first surface of substrate, resonance coil and circuit coil, first antenna
Electrode and the second antenna electrode are physically separated, and include the second multiturn.
Near-field communication aerial the most according to claim 9, wherein, resonance coil is positioned at return line
The inside of the interior circle in described first multiturn of circle.
11. near-field communication aerials according to claim 10, wherein, described the first of circuit coil
Distance between interior circle in multiturn and the outermost turn in described second multiturn of resonance coil is less than
2mm。
12. near-field communication aerials according to claim 9, wherein, the self-resonance frequency of resonance coil
Rate corresponds to 13.56MHz.
13. near-field communication aerials according to claim 9, wherein, described the second of resonance coil
Every circle in multiturn has rectangular shape.
14. near-field communication aerials according to claim 9, wherein, described the second of resonance coil
Every circle in multiturn has round-shaped.
15. near-field communication aerials according to claim 1, described near-field communication aerial also includes:
Resonance coil, is formed on the first surface of substrate, resonance coil and circuit coil, first antenna
Electrode and the second antenna electrode are physically separated, and include a circle；And
Resonant capacitor, is combined between the two ends of resonance coil.
16. near-field communication aerials according to claim 15, wherein, resonance coil and resonant capacitance
The inside of the circle that device is positioned in described first multiturn of circuit coil.
17. near-field communication aerials according to claim 16, wherein, described the first of circuit coil
The distance between interior circle and resonance coil in multiturn is less than 2mm.
18. near-field communication aerials according to claim 15, wherein, by resonance coil and resonance electricity
The resonant frequency that container is formed is corresponding to 13.56MHz.
19. 1 kinds of near field communication means, described near field communication means includes:
Near field communications chip, including the first sender electrode and the second sender electrode, and is configured to produce
Send signal and send signal by the first sender electrode and the output of the second sender electrode；
Near-field communication aerial, is formed on the first surface of substrate, and near-field communication aerial includes first antenna
Electrode, the second antenna electrode and be directly incorporated between first antenna electrode and the second antenna electrode return
Map, and be configured to based on sending signal transmitting electromagnetic wave；And
Match circuit, is attached to the first sender electrode, the second sender electrode, first antenna electrode and second
Antenna electrode, and be configured between near field communications chip and near-field communication aerial perform impedance matching,
Wherein, circuit coil includes that multiturn, first antenna electrode are positioned in the described multiturn of circuit coil
The inside of every circle, the outside of every circle that the second antenna electrode is positioned in the described multiturn of circuit coil,
Wherein, the imaginary line through first antenna electrode and the second antenna electrode is parallel in the edge of substrate
One,
Wherein, the every circle in the described multiturn of circuit coil is not stacked.
20. 1 kinds of mobile systems, described mobile system includes:
Near field communication means, is configured to be communicated with external device (ED) by near-field communication；
Storage arrangement, is configured to storage output data；And
Application processor, is configured to control near field communication means and the operation of storage arrangement,
Wherein, near field communication means includes:
Near field communications chip, including the first sender electrode and the second sender electrode, and is configured to
Produce the transmission signal corresponding with output data and sent out by the first sender electrode and the output of the second sender electrode
The number of delivering letters；
Near-field communication aerial, is formed on the first surface of substrate, and near-field communication aerial includes first
Antenna electrode, the second antenna electrode and be directly incorporated between first antenna electrode and the second antenna electrode
Circuit coil, and be configured to based on send signal launch electromagnetic wave；And
Match circuit, be attached to the first sender electrode, the second sender electrode, first antenna electrode and
Second antenna electrode, and be configured between near field communications chip and near-field communication aerial perform impedance
Coupling,
Wherein, circuit coil includes that multiturn, first antenna electrode are positioned in the described multiturn of circuit coil
The inside of every circle, the outside of every circle that the second antenna electrode is positioned in the described multiturn of circuit coil,
Wherein, the imaginary line through first antenna electrode and the second antenna electrode is parallel in the edge of substrate
One,
Wherein, the every circle in the described multiturn of circuit coil is not stacked.
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| KR10-2015-0083130 | 2015-06-12 | ||
| KR20150083130 | 2015-06-12 |
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| KR (1) | KR102511755B1 (en) |
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| KR102511755B1 (en) | 2023-03-21 |
| KR20160146529A (en) | 2016-12-21 |
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